This short, practical and candid book is the product of a series of ideas and workshops from a diverse and experienced group that initially just wanted to make air and space power more accessible to all, and help those that needed to understand it better. It was started when a UK general election was still some distance away, but the snap election allowed us to make if far more relevant to the new Labour Government. A new administration that, for good reason, has had far less experience of the defence challenges facing the UK and her allies, and for whom the complexities of air and space power might be hard to grasp, but with little time available to do so. We trust that this easy-to-read book will help them and others better understand the key concepts and considerations behind the essential and critical air and space power the Nation needs now more than ever.